Thomas iiampson



` (No Model.)

T. HAMPSON. BOBBIN SHUTTLE Patented July 2, 18975.

@mit/names l UNITED STATES PATENT OFFICE.

THOMAS IIAMPSON, OF ANNISTON, ALABAMA, ASSIGN OR OF ONE-HALF TO JAMES B.GOODWIN, OF SAME PLACE.

BOBBlN-SHUTTLE.

SPECIFICATION forming part of Letters Patent No. 542,160, dated July 2,1895.

Application filed December 26, 1894. Serial No. 533,015. (No model.)

To all whom it may concern:

Be it known that I, THOMAS HAMPsoN, a citizen of the United States,residing at Anniston, in the county of Calhoun and State of Alabama,have invented certain new and useful Improvements in Bobbin-Shuttles;and I do declare the following to be a full, clear, and

exact description of the invention, such as willv enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form a part of this specification.

This invention is directedto improvements in bobbin-shuttles, and hasfor its object the production of an improved clutch which, when operatedby a part of the tongue, engages the bobbin-Hange and holds the latterfirmly in place. Y

Another object of the invention is to minimizethe breakage ofthe bobbin,due to a rapid traverse, and to this end the clutch is provided withjaws which curveutwardly and upwardly to conform to the lower half ofthe modied construction.

- ceives and holds laterally the bobbin c.

bobbin-flange, thereby distributing the strain suiiiciently to precludebreakage.

Theinvention will now be described in detail, and in connection with thedescription atention is called to the accompanying drawings, inwhich- YFigure l is a side elevation, partly in section, of a bobbin-shuttleembodying my invention. Fig. 2 is a similar View showing a Fig. 3 is adetail view with the parts in another position. Fig. 4 is a view inperspective of one form of clutch employed, and Fig. 5 is a perspectiveview of a modified form ot' clutch.

Referring to the said drawings by letter, A denotes a shuttle case orbody of. the usual construction, and b is the tongue which re- Thetongue bis pivotally secured at one end to the case or body within theusual slot by pivots b2, extending laterally from the bearing-piece b.Said tongue also is held within the case or at an angle thereto toreceive the bobbin by a leaf-spring d, engaging the upper end of thebearing-piece in the well-known manner. The bearing-piece is providedwith a cam-extension b3, which in my preferred construction operates theclutch presently to be described; but said clutch may be operatedindependent of the movement of the tongue in various ways.

E denotes the clutch, which, as shown, comprises an arm e, havinglateral pivots c,pret erably formed by passing a pin through an aperturein the arm, said pivots being mounted in the case in a manner to permitthe arm to rock freely, and one end e2 ot' this arm `in practicecontacts with the cam b3. rlhe other end of the arm terminates in twojaws e4 e4, which Vgive a preponderance of weight to this end ot' thearm and consequently a constant tendency to fall. I have shown in thedrawings two styles of bobbins, one having a single flange c with aninclined inner side and the other having a double iiange c2,providing auannular groove c3. For the single iianged `bobbin I use the constructionof jaws shown in Figs. 1, 3, and 4, which conform in shape to theinclined inner side of the ange and inl of bobbins conform to the lowerhalf of thel bobbin, or, in other words, are semicircular in shape,andwhen in engagement the bobbin is so held as to distribute thelongitudinal strain evenly over one-half of the iiange, therebyovercoming the liability of breakage so common in the shuttles asordinarily constructed. l

The clutch, as before stated, may be operated independently of themovement of the tongue; but in my preferred construction such anarrangement 1s resorted to as a simple but very effective manner ofcarrying the invention into eifect without modifying the construction ofthe shuttle. The clutch can be easily and quickly applied or attached toold as well as new shuttles and is very positive in action. With the twoconstructions 0f jaws shown any kind or type of bobbin can be firmlyheld against longitudinal dis` placement despite the rate of speed orexcess of pick, and all friction is avoided.

'lhe simplicity of the invention not only renders its application andoperation easily effected, but enables the same to be produeed at a verysmall cost. The device moreover' is very durable and not liable todisorder, and no lubrication is necessary for its proper operation.

I claim as my inveutionl. In combination with a shuttle and with thetongue pivotally secured therein, a bobbin clutch pivoted forward of thepivotal connection of the tongue and having jaws for engaging the bobbinflange comprising a pivoted arm and two jaws at one end thereof, saidjaws being curved outwardly and upwardly to conform to the lower half ofsaid flange, in combination with a tongue pivotally secured in saidshuttle and having a part adapted to operate the clutch, substantiallyas described.

4. In combination, a shuttle, a tongue pivotally secured therein andhaving a cam extension, a flanged bobbin, and a clutch consisting of anarm pivoted forward of the pivotal connection of the tongue, one end ofwhich is in contact with said cam and the other end ofwzhich carries twojaws adapted to be raised into engagement with the bobbin flange as thetongue is lowered. y

In testimony whereof I affix my signatuie in presence of two witnesses.

THOMAS IIAMPSON. Witnesses:

H. A. YOUNG, J. L. WIKLE.

